A Virtual Test Environment for MPI Development: Quick Answers to Many Small Questions

Abstract. MPI implementations are faced with growingly complex network configurations containing multiple network interfaces per node, NAT, or dual stacks. To implement handling logic correctly, thorough testing is necessary. However, the cost of providing such diverse setups in real hardware is prohibitively high, resulting in a lack of testing. In this article, we present a Virtual Test Environment (VTE) that considerably lowers this barrier by providing complex network environments on a single computer and thus enables testing in situations where it otherwise would not be feasible.

• Type: Conference
• Year: 2007
• Where: PVM
• Authors: Wolfgang Schnerring, Christian Kauhaus, Dietmar Fey
• Keywords: Complex Network, Complex Network Configurations, Multiple Network Interfaces, PVM 2007